The impact of citrate introduction at UK syringe exchange programmes: a retrospective cohort study in Cheshire and Merseyside, UK
Harm Reduction Journal (2007) - Comment
pubmed: 18072971  doi: 10.1186/1477-7517-4-21  issn: 1477-7517 

Caryl M Beynon, Jim McVeigh, Martin Chandler, Michelle Wareing, Mark A Bellis